Ответ:

1. Have you ever been to London?
2. They don't have dinner at 7 o'clock.
3. I never drink coffee in the morning.
4. What is your telephone number?
5. We are going to play chess this afternoon.
6. This computer was made in Japan.
7. She is a bank manager, isn't she?
8. They come to Italy.
9. I prefer to buy clothes in boutiques.
10. How much cheese do you add to this dish?
11. We were talking when the telephone rang.
12. Have you ever tried to weird food?
13. She had finished cooking before we came.
14. How many dollars did/do you spend a week?
15. Who plays/ is playing the violin?